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Finding the Fourth Proportional to 519,878.88, 779,764.46 and 352,474.56

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Solution

The fourth proportional to 519,878.88, 779,764.46 and 352,474.56 is: 528,675.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,878.88 : 779,764.46 = 352,474.56 : x
  2. Step 2: Convert to fraction form
    519,878.88/779,764.46 = 352,474.56/x
  3. Step 3: Cross multiply
    519,878.88x = 779,764.46 × 352,474.56
  4. Step 4: Simplify right side
    519,878.88x = 274,847,133,179.77
  5. Step 5: Solve for x
    x = 274,847,133,179.77/519,878.88
  6. Step 6: Final answer
    x = 528,675.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.